package com.lyc.mall.filter;

import com.lyc.mall.util.Constant;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter("/api/mall/*")
public class MallFilter implements Filter {
    public void init(FilterConfig config) throws ServletException {
    }

    public void destroy() {
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) resp;
        response.setHeader("Access-Control-Allow-Origin", Constant.ORIGIN);
        response.setHeader("Access-Control-AllowMethods", "POST,GET,OPTIONS,PUT,DELETE");
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with,Authorization,Content-Type");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        request.setCharacterEncoding("UTF-8");
        response.setContentType("text/html;charset=utf-8");
        chain.doFilter(request, response);
    }
}
